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T8-T10A hot rolled steel round bars
T8, T10 and T12 are carbon tool steels. They are very hard. The Brinell hardness in annealed state is more than 300.Manual saw blade is T12 material, just quenching, hardness is greater.10 and 20 are low carbon, high quality structural steel, very soft, Brinell hardness is less than 155.Therefore, the fitter saw, laborious, the saw is very easy to wear.
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T8-T10A hot rolled steel round bars
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Description
T8-T10A hot rolled steel round bars information
Tool steels are high quality steels developed with controlled chemical composition to form properties essential for working and shaping of other materials. They are normally delivered to the suppliers in the soft annealed condition, which makes it easy for the manufacturer to machine the material with cutting tool for different applications.AISI T8 tool steel is a tungsten-cobalt-vanadium high-speed tool steel. The following datasheet will provide an overview of grade T8 tool steels.
Chemical and Mechanical
Chemical Composition
The chemical composition of T8 tool steels is outlined in the following table.
| Element | Content (%) |
|---|---|
| Tungsten, W | 13.25-14.75 |
| Cobalt, Co | 4.25-5.75 |
| Chromium, Cr | 3.75-4.5 |
| Vanadium, V | 1.80-2.40 |
| Carbon, C | 0.75-0.85 |
| Molybdenum, Mo | 0.4-1 |
| Nickel, Ni | 0.3 |
| Copper, Cu | 0.25 |
| Manganese, Mn | 0.2-0.4 |
| Silicon, Si | 0.2-0.4 |
| Phosphorus, P | 0.03 |
| Sulfur, S | 0.03 |
Physical Properties
The following table shows the physical properties of T8 tool steels.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.43 g/cm3 | 0.267 lb/in3 |
Mechanical Properties
The mechanical properties of T8 tool steels are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1158 MPa | 167.95 ksi |
| Elongation | 15% | 15% |
| Modulus of elasticity | 190-210 GPa | 27557- 30457 ksi |
| Poisson’s ratio | 0.27-0.3 | 0.27-0.3 |
Thermal Properties
The thermal properties of T8 tool steels are given in the following table
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient | 16-17 µm/m°C | 8.8-9.4 µin/in°F |
| Thermal conductivity | 16 W/mK | 110 BTU.in/hrft².°F |
T8 Range of products
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
Cross Reference Table(Equivalent Grade
| Grade | Standard | Country | Application |
|---|---|---|---|
| T8 | ASTM | USA | High-Speed Tool Steel |
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